Service Rendered.

I went to FNB evaton plaza for a simple banking app assistance they then provided the soft phone to contact the call centre.I spoke to an agent who said on the recorded line my banking needs to be reset since she delinked my banking app.This was at around 10:15. I left the branch after 12PM and my issue still persist. What kind of service is this by so called a big bank? It's not like I went there to beg for aid I ****en went there to receive the service I pay for.